United Business Media has agreed to sublease space at 240 Blackfriars Road, SE1, to political consultancy Adam Smith International and Red Ant Fashion at a 35% premium to its 2011 prelet.
Adam Smith International, which was founded in 1992 and has links to the influential economic think tank Adam Smith Institute, will occupy 12,000 sq ft on the 14th floor.
It has agreed a rent of £60 per sq ft.
Red Ant will occupy 6,000 sq ft on the 11th floor, paying £64 per sq ft.
Both deals represent a significant premium on the £47 per sq ft rent which United Business Media agreed when it prelet 105,648 sq ft in the top nine floors of the building in 2011.
The events company has now sublet a total of 41,000 sq ft at the office block.
Developed by Great Portland Estates on behalf of the Great Ropemaker Partnership, 240 Blackfriars Road now has 23,884 sq ft left available on the seventh and eighth floors.
Great Portland Estates completed the 19-storey, Allford Hall Monaghan Morris-designed block in 2014.
Colliers International advised United Business Media, while DeVono Property acted for Adam Smith International.
